Rounded corners on UIView [duplicate]

问题:

This question already has an answer here:

• UIImage rounded corners 15 answers

I am confused on how I would round corners, I've seen about 10 other posts and non of them have helped me. Am I doing this correctly?

#import "QuartzCore/QuartzCore.h" // in my ViewController.h

- (void)viewDidLoad
{
[super viewDidLoad];

     self.backgroundLayer.cornerRadius = 10.0f;
}

If somebody could help me out on this it'd be greatly appreciated.

回答1:

Yes, You are correct but set self.backgroundLayer.layer.borderWidth, I put following code might be helpful in your case.

For give round Border Of UIView.

Add #import "QuartzCore/QuartzCore.h" fram work. (you've already done it)

self.backgroundLayer = [UIView alloc] initWithFrame:CGRectMake(@"As You Want")];
self.backgroundLayer.backgroundColor = [UIColor redColor];
self.backgroundLayer.layer.cornerRadius = 10.0; // set cornerRadius as you want.
self.backgroundLayer.layer.borderColor = [UIColor lightGrayColor].CGColor; // set color as you want.
self.backgroundLayer.layer.borderWidth = 1.0; // set borderWidth as you want.
[self.view addSubView:self.backgroundLayer];

in your case give border of UIView.

回答2:

Try turning on masksToBounds. Also, what is backgroundLayer?

- (void)viewDidLoad {
    [super viewDidLoad];

    self.view.layer.cornerRadius = 10.0f;
    self.view.layer.masksToBounds = YES;
}